<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>问卷调查</title>
        <style>
            html{
                width: 100%;
                height: 100%;
            }
        </style>
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
       <body>
        
<div class="nav_bar">当前位置：工作区域</div>
<div class="main_title">通知公告</div>
<div class="main_body">
    <ul>
        <li>公告1</li>
        <li>公告2</li>
        <li>公告3</li>
    </ul>
</div>
<div class="main_title">我的待办</div>
<div class="main_body">
    <ul>
        <li>待办1</li>
        <li>待办2</li>
        <li>待办3</li>
    </ul>
</div>
<div class="main_title">我的消息</div>
<div class="main_body">
    <ul>
        <li>消息1</li>
        <li>消息2</li>
        <li>消息3</li>
    </ul>
</div>